New Earliness Index and Integration of Earliness Additive Genes in the New Genotype of Cotton (Gossypium hirsutum L.)

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New Earliness Index and Integration of Earliness Additive Genes in the New Genotype of Cotton (Gossypium hirsutum L.)

Authors
Type
Published Article
Journal
International Journal of Life-Sciences Scientific Research
Publisher
Marwah Infotech
Publication Date
May 03, 2017
Volume
3
Issue
3
Pages
1016–1019
Identifiers
DOI: 10.21276/ijlssr.2017.3.3.9
Source
MyScienceWork
License
Green

Abstract

Cotton (Gossypium hirsutum L.) is an important fiber crop in the world being used in the textile industry and over 90% of cotton grown in the world is upland cotton. An experimental design carried out for integration of earliness genes from sindose-80 to bulgare-557 during 2005 to 2016 in the The first cross carried out between sindose-80 and bulgare-557 in 2005 and after crossing five years selection was done among segregated population till to F 5. In 2011 the second cross carried out as a back cross between the new variety and sindose-80. Five years selection was also done after second cross. In 2016, the new earliness genotype compared with the five native and commercial cotton varieties in RCBD design. The criterion for earliness was a new earliness index of combined picking and day (CPD), which has been presented as a new earliness index in this paper along with EFD and FFT indexes. Mean comparison of traits such as three earliness indexes, boll per plant, micronaire and yield showed priority of the new earliness genotype. Comparison of the three earliness indexes indicated priority of CPD index, which is combined by both time and weight to the two conventional indexes such as EFD and FFT which are showing time and weight affects in the earliness respectively.

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